76 citations · 230 across the 7 of their papers we have counts for
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eess.SP2020★ 49 cited
Laser Phase Noise Tolerance of Uniform and Probabilistically-shaped QAM Signals for High Spectral Efficiency Systems
Takeo Sasai, Asuka Matsushita, Masanori Nakamura +3
We numerically and experimentally investigate the laser phase noise tolerance of probabilistically shaped (PS) and uniformly shaped (US) quadrature amplitude modulation (QAM) signa…
eess.SP2020★ 26 cited
Wiener-Hammerstein model and its learning for nonlinear digital pre-distortion of optical transmitters
Takeo Sasai, Masanori Nakamura, Etsushi Yamazaki +4
We present a simple nonlinear digital pre-distortion (DPD) of optical transmitter components, which consists of concatenated blocks of a finite impulse response (FIR) filter, a mem…